Recent content by takudo_1912

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    Photo Contest - Love And Affection (6/30-7/6)

    I like it so much
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    Euro 2012: Who's Cheering For Whom?

    I love France,but they were shut out :(
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    Oscillating bucket, variable mass

    I think that the period of oscillation didn't depend on amplitude or other effects.It only depend on m and k.So that T=2π.\sqrt{\frac{m}{2k}}
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    Photo Contest - Turned Into A Statue (6/23-6/29)

    This is the Future-Buddha statue (in Buddhism) at peak of Bai Dinh Pagoda-The Biggest Pagoda in Southeast Asia(my father land).
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    Photo Contest: Join the Fun on Nov 13!

    I registered in august 2011,but I have no time to view the forum.Recently,I haven't be busy and login frequently :) Tkank u
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    Photo Contest: Join the Fun on Nov 13!

    This photo contest is very exciting . But did it stop on 18/5 ? I just join forum recently and i want to take part in the contest ^^
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    Circular Motion Power: Why Isn't Work Done Equal to Zero?

    I think this was the correct answer :-s
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    Circular Motion Power: Why Isn't Work Done Equal to Zero?

    I think that: v^{2}=v^{2}_{c}+^{2}_{t} But v_{t}=krt And v_{c}=\frac{k^{2}.r.t^{3}}{3} W=1/2.m.v^{2} P=dW/dt=...
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    Center of mass of half square without a half circle

    You should use the guyndanh formula for sheet
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    High School How far can a 1300nm wave travel in 100ns?

    If this is so,are the problem necessary to know wavelength? because we knowed v=c/1.44
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    High School How far can a 1300nm wave travel in 100ns?

    what is "refraction index" :-s?
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    Undergrad Calorimetry(determination of specific heat capacity)

    why not?we have the"heat of vaporization" but we have the"heat of fusion",too
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    Undergrad Solving J.E = W/V with Dimensional Analysis

    W isn't "work" ,it's work/t(its dimension is J/s),you mistakes at this